From: Warren Oates on
In article <tom_stiller-9428EC.07080030062010(a)news.individual.net>,
Tom Stiller <tom_stiller(a)yahoo.com> wrote:

> PNG is OK but why would one store X-ray images in a lossy image format
> like JPG?

What, you want to edit your X-rays? "Oh, see, now I _don't_ have
pneumonia."
--
Very old woody beets will never cook tender.
-- Fannie Farmer
From: Fred Moore on
In article <4c2b2d96$0$10428$c3e8da3(a)news.astraweb.com>,
Warren Oates <warren.oates(a)gmail.com> wrote:

> In article <tom_stiller-9428EC.07080030062010(a)news.individual.net>,
> Tom Stiller <tom_stiller(a)yahoo.com> wrote:
>
> > PNG is OK but why would one store X-ray images in a lossy image format
> > like JPG?
>
> What, you want to edit your X-rays? "Oh, see, now I _don't_ have
> pneumonia."

No, actually it's to keep you from taking the images to another doctor
and having him do the surgery (my speculation). I had some x-rays of my
lower back taken. The facility was happy to give me a free CD with them
on it. However, they were _much_ lower rez than the ones the doctor
showed me at the office. Both he and I have hi-rez screens, so it wasn't
that. I was told the software from the x-ray machine only spits out
copies at a lower rez.

BTW & FWIW, my x-rays were in DICOM, rather than DCM, format. They came
on an ISO-9660 disk with Doze-only executables. However, there is a free
Mac app, OsiriX, which will display and export the films. BUT, it can't
give you any better resolution than the clinic gave you.
From: nospam on
In article <fmoore-2ABE23.11075930062010(a)news.eternal-september.org>,
Fred Moore <fmoore(a)gcfn.org> wrote:

> No, actually it's to keep you from taking the images to another doctor
> and having him do the surgery (my speculation).

they're *required* to give them to you or have them sent directly to
another doctor, along with your medical records, if you request it.

> I had some x-rays of my
> lower back taken. The facility was happy to give me a free CD with them
> on it. However, they were _much_ lower rez than the ones the doctor
> showed me at the office. Both he and I have hi-rez screens, so it wasn't
> that. I was told the software from the x-ray machine only spits out
> copies at a lower rez.

sounds like bullshit.

> BTW & FWIW, my x-rays were in DICOM, rather than DCM, format. They came
> on an ISO-9660 disk with Doze-only executables. However, there is a free
> Mac app, OsiriX, which will display and export the films. BUT, it can't
> give you any better resolution than the clinic gave you.

medical x-rays will be dicom (i've never seen them not).
From: isw on
In article <tom_stiller-9428EC.07080030062010(a)news.individual.net>,
Tom Stiller <tom_stiller(a)yahoo.com> wrote:

> In article <20100630001001441-jasonsavlov(a)mecom>,
> Jason S <jasonsavlov(a)me.com> wrote:
>
> > On 2010-06-28 23:00:26 -0400, Mel Comisarow said:
> >
> > > I had a bunch of x-rays done for my cat and the veterinarian returned a
> > > cd containing a bunch of files with a .dll suffix and a file with an
> > > .exe suffix, which presumably is a Windows program. The Finder says
> > > each .dll file is a "Windows dynamic link library". How can I read these
> > > .dll files on my Mac? Thanks.
> >
> > Why does this sound way more complicated than it probably is? And why
> > on earth does your veterinarian put the images in a windows executable
> > file? Why not just put the images in folders as PNG or JPG or something
> > easily accessible?
> >
> PNG is OK but why would one store X-ray images in a lossy image format
> like JPG?

Because if you do it right, you save considerable space, and it's not
lossy enough to matter?

Isaac
From: Tom Stiller on
In article <isw-3F6597.10150030062010@[216.168.3.50]>,
isw <isw(a)witzend.com> wrote:

> In article <tom_stiller-9428EC.07080030062010(a)news.individual.net>,
> Tom Stiller <tom_stiller(a)yahoo.com> wrote:
>
> > In article <20100630001001441-jasonsavlov(a)mecom>,
> > Jason S <jasonsavlov(a)me.com> wrote:
> >
> > > On 2010-06-28 23:00:26 -0400, Mel Comisarow said:
> > >
> > > > I had a bunch of x-rays done for my cat and the veterinarian returned a
> > > > cd containing a bunch of files with a .dll suffix and a file with an
> > > > .exe suffix, which presumably is a Windows program. The Finder says
> > > > each .dll file is a "Windows dynamic link library". How can I read these
> > > > .dll files on my Mac? Thanks.
> > >
> > > Why does this sound way more complicated than it probably is? And why
> > > on earth does your veterinarian put the images in a windows executable
> > > file? Why not just put the images in folders as PNG or JPG or something
> > > easily accessible?
> > >
> > PNG is OK but why would one store X-ray images in a lossy image format
> > like JPG?
>
> Because if you do it right, you save considerable space, and it's not
> lossy enough to matter?
>
I don't know, but I suspect the purpose for wanting the X-ray images was
to show them to someone and I doubt that either of us knows enough to
determine which details of the image matters and which details don't.

--
Tom Stiller

PGP fingerprint = 5108 DDB2 9761 EDE5 E7E3 7BDA 71ED 6496 99C0 C7CF